The Swiss Perc Donut Bong is specially designed with scientific glass to provide extra filtration for super-smooth hits!

This awesome perc bong features two percolators that work together to cool down your smoke for each hit! As you inhale, smoke moves from the bowl and through the joint before reaching the water chamber. When the smoke reaches the water chamber, it also passes through the donut perc, which has a cooling effect. The smoke moves further up the bong and moves through the Swiss perc, which has several glass circles that add even more diffusion to the process. Thanks to the beaker shape, you can create even more smoke than the average piece. With the Swiss Perc Donut Bong, you’ll enjoy extra-smooth and ice-cold hits during each smoking session!